Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
220074moderately pollutedexcellent101excellent
210077moderately pollutedexcellent111excellent
200076moderately pollutedexcellent121excellent
190069moderately pollutedexcellent111excellent
180068moderately pollutedgood131excellent
170063moderately pollutedexcellent121excellent
160072moderately pollutedgood141excellent
150072moderately pollutedgood141excellent
140064moderately pollutedexcellent121excellent
130069moderately pollutedgood131excellent
120051lightly pollutedgood131excellent
110091heavily pollutedgood181excellent
100067moderately pollutedgood161excellent
090068moderately pollutedgood151excellent
080068moderately pollutedgood141excellent
070062moderately pollutedgood141excellent
060079moderately pollutedgood151excellent
050081moderately pollutedgood151excellent
040066moderately pollutedgood151excellent
030075moderately pollutedgood131excellent
020068moderately pollutedexcellent121excellent
010065moderately pollutedexcellent121excellent
000065moderately pollutedexcellent121excellent
230064moderately pollutedexcellent111excellent